Utility knife



FIG. 1 is a side perspective view of the invention;

FIG. 2 is a side elevational view of the invention;

FIG. 3 is a top view of the invention;

FIG. 4 is a side view of the invention opposite to that of FIG. 2;

FIG. 5 is a bottom view of the invention;

FIG. 6 is a front end view of the invention taken from the left in FIG. 2; and,

FIG. 7 is a rear end view of the invention. 

CLAIM The ornamental design for a utility knife, as shown and described. 